ASSESSMENT OF RAT BRAIN MORPHOFUNCTIONAL STATE IN A PARKINSON'S MODEL: INFLUENCE OF THERAPEUTIC AGENTS OF ANIMAL AND...

Area of Science:

• Neuroscience
• Neurodegenerative Diseases
• Pharmacology

Background:

• Neurodegenerative diseases like Parkinson's disease (PD) often involve antinociceptive centers, leading to intractable pain.
• The periaqueductal gray matter (PAG) and nucleus raphe magnus (NRM) are key antinociceptive structures implicated in PD neurodegeneration.

Purpose of the Study:

• To investigate the neuroprotective potential of bacterial melanin and synoestrol.
• To examine their effects on PAG and NRM neurons in a rotenone-induced rat model of PD.

Main Methods:

• Induction of a PD model using rotenone intoxication in rats.
• Morphological and biochemical analysis of PAG and NRM neurons.
• Assessment of acid phosphatase activity in neuronal cytoplasm.

Main Results:

• Rotenone intoxication caused significant morphological changes and disrupted acid phosphatase activity in PAG and NRM neurons.
• Bacterial melanin and synoestrol treatment preserved neuronal morphology and normalized cell size and shape.
• Phosphatase activity increased in treated neurons, indicating metabolic activation.

Conclusions:

• Bacterial melanin and synoestrol demonstrate potential neuroprotective effects on PAG and NRM neurons in a PD model.
• These agents may counteract rotenone-induced metabolic dysfunction in antinociceptive pathways.
• Further research is warranted to explore their therapeutic application in Parkinson's disease treatment.